Wiechmann Andrew C. 4

What Happened

• Andrew C. Wiechmann, Chief Financial Officer of MSCI Inc. (MSCI), disposed of 450 shares on March 17, 2026 at $560.00 per share, for total proceeds of $252,000. The filing reports the transaction as a sale (S), and it was effected under a Rule 10b5-1 trading plan.

Key Details

• Transaction date and price: March 17, 2026 — 450 shares at $560.00 each.
• Total value: $252,000.
• Filing date: March 19, 2026 (filed within the typical two-business-day Form 4 window).
• Footnote: Trade executed pursuant to a 10b5-1 plan adopted September 3, 2025.
• Shares owned after transaction: Not specified in the summary data provided — see the full Form 4 for reported holdings.
• Transaction type code: S = Sale (open-market/private sale).

Context

• This was a sale, which insiders commonly execute for diversification or planned liquidity; sales are often routine and do not necessarily signal negative company prospects. Because the trade was made under a pre-established 10b5-1 plan, it was automated per the plan’s terms rather than a discretionary, real-time decision.